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All results from a given calculation for CH2BrF (Methane, bromofluoro-)

using model chemistry: HF/CEP-121G

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes CS 1A'
Energy calculated at HF/CEP-121G
 hartrees
Energy at 0K-43.594899
Energy at 298.15K-43.600398
HF Energy-43.594899
Nuclear repulsion energy38.310603
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at HF/CEP-121G
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A' 3289 3001 25.58      
2 A' 1599 1459 0.69      
3 A' 1462 1334 93.63      
4 A' 1103 1006 219.78      
5 A' 672 613 79.70      
6 A' 319 291 1.87      
7 A" 3406 3108 10.43      
8 A" 1326 1210 7.88      
9 A" 1017 928 0.01      

Unscaled Zero Point Vibrational Energy (zpe) 7095.8 cm-1
Scaled (by 0.9125) Zero Point Vibrational Energy (zpe) 6475.0 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at HF/CEP-121G
ABC
1.28093 0.12143 0.11336

See section I.F.4 to change rotational constant units
Geometric Data calculated at HF/CEP-121G

Point Group is Cs

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.539 -1.128 0.000
F2 -0.602 -1.938 0.000
Br3 0.000 0.767 0.000
H4 1.094 -1.315 0.901
H5 1.094 -1.315 -0.901

Atom - Atom Distances (Å)
  C1 F2 Br3 H4 H5
C11.39931.96951.07521.0752
F21.39932.77112.01922.0192
Br31.96952.77112.51862.5186
H41.07522.01922.51861.8028
H51.07522.01922.51861.8028

picture of Methane, bromofluoro- state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
F2 C1 Br3 109.523 F2 C1 H4 108.667
F2 C1 H5 108.667 Br3 C1 H4 107.996
Br3 C1 H5 107.996 H4 C1 H5 113.932
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at HF/CEP-121G Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.190      
2 F -0.303      
3 Br 0.090      
4 H 0.202      
5 H 0.202      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  2.612 -0.391 0.000 2.641
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -26.285 -4.571 0.000
y -4.571 -28.471 0.000
z 0.000 0.000 -25.901
Traceless
 xyz
x 0.901 -4.571 0.000
y -4.571 -2.378 0.000
z 0.000 0.000 1.477
Polar
3z2-r22.954
x2-y22.186
xy-4.571
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 2.261 -0.731 0.000
y -0.731 5.545 0.000
z 0.000 0.000 1.984


<r2> (average value of r2) Å2
<r2> 63.462
(<r2>)1/2 7.966